Apparatus for comminuting calcareous saltpeter, potassium or magnesium chlorid, and the like.



r UNITED STATES PATENT OFFICE,

HARM PAU-miie, os commes, "sammy, esslespx, BY Meseta asswissieaessrm SOUTHERN ELECTRPfGH'EMmAL CQMSPANY, CQBFQBATiON QFNEW JERSEY, ermseessroe eemmmimre .ehehe were senseless-Je POTAeSIUM ele MAGNBSiUM semen Aim was mss.

.chlor,l, and 4 th, l1` k e af te r the same are' melted and solidified and .thereby crystallisejd, to granularvfgrm," In c onnee tien i.t maybe te state' briefly, .e f.evv faqts relative to fthe manner in .which sub- Steneee .el thfspeharaeter have vheetoifore .been treated in .raetiee for .the purpose ef iedueing them to :the granular .feria iii yvheh they .eLeempIOyed ,inzthevarieaie arte Celcareous Saltpetel iS ,obtained vby saturating .nitric acid .with lime so as form e Salt,

.and then evAv rating the eigeess of Water from .the-sagihaemgthe fait no its j'ng point', the' salt while still heatedand c .after losing its Water by' such eyapsration t. 'being .then .east inte moltis- .Salts v vhfeh require to he .ealeined' or which will only give 'aofi' the excess Water they contain by'being h ted to suehftewnereture .este teelt the Se te me; titerllen'g deprieil- Orig-.their eX- cess watenasstate poured into'a reeepf taole and allo'vved to crystallize. f

When substances'ofthe' kind above mentioned are treated as just stated, ,itis neces;

sary 'to remove them from the. olds, and this -s done by a step known in'this 4:irrtas thawing, that isto say a strong heat is applied u iokly toi-the wallvof the mold so as to me t a small portion ofjthe material in immediate contact with the mold. This-being done practically the entire mass of the salt 'may be ejected from the mold in the form of a solid block. By a separate step this block, which is veryhard, is lplaced in abreaker and-brokenup, after which it is ground in a mill to the desired degree of*` f'neness. Myinvention does not diler materially.; from those above described-up tothepoint where the material is poured into the mold and there allowed to cool and become 'herd Specification of Letters llatent.

Application led Mayta), 1;)12. erial No. 69 8, 53.

'and ih which liv er by hel-nd, es .de'sire'd- Eng iper portion vof the shaft' 's a Patentes one. 14, wie

I' end Crystalline- .Flrem thi# Peint in the 0P- era-tien, I apply to .thehleehvyhile it remains ih the hield, e deviefe ef Special eehstruetien hy aid Vwhereof .the materiel ieder- .erated upon, and thus reduced directly granular form suitable for eomrneroal p se. While my nventieh maybe retsed ih remue Ways I find it eenveeieht te ueeifif ,the Peepe'se iefleated; e Perteulareppe# rattle vvheh vvlll ,I wvv he' deseriheltlf Referente ie mede to Lthaeea'lhreihg' drawing O rmntg e part et this Specifica Teti,

Seeteh trough my .impfevesl apparatus eheh-'1.120 'Seme ih lise-' Fig 111e a lah y1ew o? lteapp'aratus-,the moldgnd oo ntents being remoyed.

The mold is shown at @and generally theJ forin of a een The Salt er material "filling the in old is shoyvn `at e', b

having elierttlly .e Cylindrical' feint solletitutes a rame work v4for my dey/ige. :'Qoeated 'eehtrellyvvithie the easing .b- 1s emerse end the@ e provided wie, adeu'yfespeee geen a may lietule lily-10W am' the uf horiaeetely thxtllgh which. thethleeded partiell efltlle sheft iS free t0 Werk. A."the .iste-#f .weer

eetetehle het vertically immevehleeut f 'tatetl relatively te .thenuty it is also raised This nut issiipportedby gfflang f ly t annuler tiefen; 'eetl .Serves hee a Sihstehtie asa floor for receiving the' material as the same dfops'down upon it after-bein .g'ranw lated. AAsthe shaft is slowl v rotate within the fixed nut,v it is raised gradually.v Afspout ing and f leads obliquely upward to the flange or annular floor f,. Clamps-m are employed for the purpose 'of detachably holding the mold'in inverted position upon the casing b, as indicated' Fig. l'. The clamps m are mounted on ec'centrics n journaled' in the `casing b at its top, the ecceng. extendsjnt'o and is supported by the .l

tries n having levers o by means'of-vvhieh the ecoentrics 'n may be turned to draw the j clamps m down "upon the 'mold e. This arrate of speed.

"rotation is imparted rangement insures the tightening of 'the molda upon the easing The pulley c has a downwardly enlarged `hub le which is rotatably mounted in a fixed support A wiper or sweeper g is n'i'oved over the floor f to gather and deliver the eut particles of the block a into the spout,I g through whiehthe particles pass rourthe machine. The wiper or rality of radial scraper' blades secured at their inner ends upon lugs p radiating from the nut c. The nut c hasa gear g fixed upon its lower end which meshes with a second gear r of the same, or of alsmaller diameter and which is keyed to a vertical shaft s. The lower end t of the threaded 4shaft c issmooth and has a longitudinal key-Way vu receiving the key v carried by the vhub /c whereby the hub rotates,bt.does not move vertically with the shaft c. The hub /c of the gear e also has a pinion w fixed to the hub and meshing with the larger gear Wheei .L' secured to the lower end of the shaft s.' Vith this a1`range1nent`the turning of the gear wheel e revolves the shaft c and the pinion fw at the same itime and at the same However, since the geanm islarger than the pinion w the shaft s is turned at a slow'ervrate of speed than the shaft c, and this relatively Slow speed of to t-he nut c. This movement of the shaft e and the nut c', eflects the turning of the shaft ,c within the /rotated in any l,ment of ,the shaft through the nut.

nut c and the consequent vertical move The knives z are thusraised and rotated against and thezwiper or s'weepery isfrotatedl over the floor f. The shaft s` is mounted in suitable bearings y disposed in one sideji the casing Za. A

' The "operation of this apparatus is as follows: The salt havingl been heatedfpoured into the meldt-a and allowed to cool, and thereby crystallized into" a is inverted and there det-achably secared'in position by.aid of the clamps m. lThe pulley `e being-now suitable manner, and the shaft eis turned and slowly raised,'th"e' sweeperg comprises a plu` .point 'particles adapted to rece-ive the tposition, clamps carried en. thesfuamede- Knives L, by scraping or cutting against the lower surface of the block ofv crystalline material, eut ofi' small portions `from the block, and these in theforu:A of granulated material drop by degree-superi the flange or floor f. From here they are removed 'by ,tid ofthe rotary wiper the sweeper g andf'spout y.Y The material thus prepared is ready for the market and may, if desired, lie-separated into different grades which differ from each other in the respective Iineness of the grains.

I do not. limit myself to thel'use 'of the particular apparat-us described, the scope of my invention being commensurate with lny claims. i

Having thus described my invention what I claim is 1 The combination witlran invertible mold in which is" cast a block tov be cut,of a stationary supporting frame adapted to receive an overturned mold, block, 'comsJ minuting means disposed on the frame and adapted to advance into said 1nold,'collect ving and di-livering `.meansz carried` bythe frame adapted to collect and delivciatbne out' fromv the v,bloc clamping means on the frame for f ,j ment with the-smold, said meansfbeingdetaelmbl-e from the mpld whereby, t/liemold 80 may be N'cpiickly removed from their other molds substituted.therefor -2. The combination withbamol. u-rwhnfh is east a block to be cut, aa \s upporting fra'me moldv Lin'.v overturnedI 8.5

tach-ably engaging themold whereby otherLL molds may be readily. substituted. therefor. block cutting ,means'on lther-tramey adapted to advance into the mo1d,fand ljil'o'elrf'pay ,le 9o collecting and delivering v,means"carried by the frame'. i i 12.- In testimony whereof haive-"llenannto set4 my hand in presence 'of two subscribing Witnesses. i l

HARRY, PAUL-1N@ Witnesses: 4-

RICHARD MERKEL, LOUIS VANDonN. 

